PROMETHEE 기법을 활용한 초고층 건축 시공 리스크 분석

Abstract

Abstract

Recently, the constructions of high-rise buildings which equipped with various and complicated functions are increasing due to the increase in population and urban concentration in local cities and other countries. Due to the complicated characteristics of high-rise building such as the high number of floors, new materials and construction methods are used to complete the constructions of high-rise buildings within the time limit. These material and construction methods are different from the construction of ordinary buildings and require more capital, manpower and skills. Because of these characteristics, the construction of high-rise buildings have various risk factors which causes negative results such as delay of construction and increase of costs. Therefore, there is a need of a systematic management plan in construction of high-rise buildings because the participants in high-rise building construction have different ways in handling risks depending on their experience and intuition.

Thus, PROMETHEE technique was utilized to analyzed risk factors in construction stages of high-rise buildings in this study. First of all, the risk factors of high-rise building in construction stage were identified through interview conducted with experts, and PROMETHEE was used to set up evaluation standard for analysis of high-rise building construction risks. And also the standard of evaluation index calculation was composed by using the definition level in PDRI. Preference function and evaluation index were identified through questionnaires. Through these processes, this study has discovered the importance of high-rise building construction risks by using PROMETHEE technique.

The conclusion from this study is as following. There are twenty nine (29) risks of high-rise building construction were identified through interviews with experts and all risks were classified with standard of five (5) M (Man, Material, Machine, Method and Management). As the result of risk factors in high-rise building construction analyzed through PROMETHEE technique, high degree of risks were ‘Operation plan of material lifting ', ‘Outrigger & Belt Truss Construction', 'Foundation work plan of high-rise building' and 'Considering a Structure concept of high-rise building', and low degree of risks were 'Lack of applying advanced technology in construction', 'Consideration of building wind reduction measures', 'Temporary waterproof plan for finishing floor during construction stage' and 'Concrete pouring plan of structure frame work'.